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Trash to Tiles: Plastic Bags Get a New Life
27 Sep
Summary
- Discarded plastic bags were transformed into composite tiles in a 2019 study.
- One formulation achieved a tensile strength of 9.68 MPa and low flammability.
- The tiles incorporated fly ash, a by-product of coal combustion.
In a 2019 study, researchers successfully transformed discarded plastic bags into lightweight composite tiles. This innovative approach utilizes waste plastic bags as the primary matrix, incorporating fly ash—a by-product from coal combustion—as a filler material. Different formulations were created by varying the amounts of fly ash and flame retardant, with loadings tested at 5%, 10%, 15%, and 20%.
One specific formulation, designated LFTP3, stood out by achieving a tensile strength of 9.68 MPa and a linear burning rate of 4.36 millimeters per minute. This particular combination effectively reduced flammability while enhancing tensile strength. The composite also demonstrated resistance to strong acids, bases, and organic solvents, with negligible water absorption.
While the study focused on laboratory measurements of the composite's properties, it did not assess its long-term performance in outdoor conditions or under structural loads. The research successfully presented a method for combining waste plastic bags with fly ash and a flame retardant into a composite tile, with results specific to the tested formulations.
